Merge pull request #639 from liuchuangww/user

Add local for validator
Typo fixes
Bug fixes for comment load
Added options for comment load
Comment delete
Code cleaning up
Merge pull request #640 from sexnothing/user

Comment delete
Comment delete
Comment cache flush upon delete
Fix for url route
Added redirect upon comment operation
Fix for post delete
Comment style fixed
Merge pull request #642 from sexnothing/user

Comment style fixed
Forget add title at comment list page
Merge remote-tracking branch 'upstream/user' into user
Text correction
Merge from liaowei
User activity custom
Merge pull request #644 from sexnothing/user

User activity custom